<?php

/**
 * This is the model class for table "tbl_classes".
 *
 * The followings are the available columns in table 'tbl_classes':
 * @property integer $class_id
 * @property integer $grade_id
 * @property integer $department_id
 * @property integer $major_id
 * @property integer $name
 * @property integer $status
 *
 * The followings are the available model relations:
 * @property TblDepartment $department
 * @property TblGrade $grade
 * @property TblMajor $major
 * @property TblUser[] $tblUsers
 */
class Classes extends CActiveRecord
{
	/**
	 * Returns the static model of the specified AR class.
	 * @param string $className active record class name.
	 * @return Classes the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return 'tbl_classes';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('grade_id, department_id, major_id, name, status', 'required'),
			array('grade_id, department_id, major_id, name, status', 'numerical', 'integerOnly'=>true),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			array('class_id, grade_id, department_id, major_id, name, status', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'department' => array(self::BELONGS_TO, 'Department', 'department_id'),
			'grade' => array(self::BELONGS_TO, 'Grade', 'grade_id'),
			'major' => array(self::BELONGS_TO, 'Major', 'major_id'),
			'Users' => array(self::HAS_MANY, 'User', 'class'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'class_id' => 'Class',
			'grade_id' => 'Grade',
			'department_id' => 'Department',
			'major_id' => 'Major',
			'name' => 'Name',
			'status' => 'Status',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('class_id',$this->class_id);
		$criteria->compare('grade_id',$this->grade_id);
		$criteria->compare('department_id',$this->department_id);
		$criteria->compare('major_id',$this->major_id);
		$criteria->compare('name',$this->name);
		$criteria->compare('status',$this->status);

		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
		));
	}
}